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01-06-2018
Mathematics

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Simplify the expression 2 square root 20 - 3 square root 7 - 2 square root 5 + 4 square root 63

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Аноним Аноним

01-06-2018

2 sqrt 20 - 3 sqrt 7 - 2 sqrt 5 + 4 sqrt 63

= 2 sqrt4 sqrt 5 - 3 sqrt 7 - 2 sqrt 5 + 4 sqrt 9 sqrt 7

= 4 sqrt 5 - 2 sqrt 5 + 12 sqrt 7 - 3 sqrt 7

= 2 sqrt 5 + 9 sqrt 7 (answer)

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